Steam cooking-vessel



(Hommel.) J. R. WA,LLS.

STEAM- GQOKING VESSEL.

10.269,14'3. :Patented Dec. 12,1882.

merz- Flori WITNESSES- @www Awhich I now make.

i. i UNITED STATES PATENT i OFFICE.

JAMES B. WALLS, OF CHICAGO, ILLINOIS.

STEAM COOKING-VESSEL.

SPECIFICATION forming part of Letters Patent'No. 269,143, dated December12, 1882.

Application filed July 1, 1882. (No model.)

To all whom @t may concern:

Be it known that I, JAMES R. WALLS, of Chicago, Cook county, State ofIllinois, have invented certain new and useful Improvements in SteamCooking-Vessels, of which the following is a specilication. Y

This invention relates to the construction of cooking-vessels for use onsteam-tables, and the devices whereby the same are secured to the tableswhen in use. This class of cookin g-vessels have heretofore beenconstructed with an outstanding castmetal rim, which rests upon thetable and supports the vessel when inserted in the hole in the table.The means used to confine them to the table have been catches located atopposite sides, which pass through notches in the sides of thetableopenings, and which, by rotating the vessel slightly, are made topass under the table, and so act as retaining-stops. Both ofthesefeatures are much improved by the construction I now adopt, in thefollowing respects: The cast-metal rims are very apt to be untrue, owingto the difficulty inherent in all casting operations, so that they donot form such a close joint with the table as to contine the steam. Iheyare also comparatively more expensive 'and less easily joined to thevessel than the rim The catches also do not conne the vessel closelyenough to the table, even if the rim does presenta true edge, to preventthe loss of steam or motion of the vessel.

The nature of the present invention will be understood from theaccompanyingdrawings, wherein Figure l is a side elevation, and Fig., 2a vertical section, of my improved cookingvessel shown in place in asteam-table. Fig. 3 is a bottom view of the same.

In the drawings, A represents a portion of the top of an ordinarysteam-table.

Bl represents a cylindrical vessel, of the usual construction, except inrespects hereinafter described, and resting in one of the openings inthe table. The walls of this vessel are formed -of a single piece oftinned metal, and the upper edge thereof is turned over so as inclose astiftening wire, b, at the top. A large encircling wire, b', forms theshoulder which supports' the vessel in the table. This wire is appliedto the exterior of the vessel, and it is secured by a ring, b21, of tin,soldered to the wall of the vessel below and extending up to Within theembrace ot' thedownturn'ed flange of the wall at the Wire b. By thisconstruction the vesselis provided with a double thickness at the top,so that it is very strong and not easily bent or injured, and thesupporting-shoulder is rendered so iirm :and secure thatit Will standthe clamping force to which it is subjected in the use of the fasteningdevices, which I will now describe. At opposite sides of the exterior ofthe vessel are the retaining-stops c, which, when the vessel is put intothe table, pass through the notches c at the sides of the opening inuthe table.

After being so inserted the vessel isl turned a little intheopening,\vhich causes the said stops to engage with theinclined surfacescz, on the under side of the table-top. These surfaces are Vinclinedaway from the notches c, and the greater the rotation given the vesselthe more tightly the stops and the surfaces clamp the same down upon thetable. In this manner the cooking-vessels are securely heid againstmotion of every kind, and cannot be lifted off by the pressure of steamwithin the table, and at the same time a tight joint between the tableand vessel is insured and the escape of the steam prevented. The stopsc3 limit the rotation of the vessel. This form ot'supporting-rim iseasily made true, and will not break, as do the cast-iron rims form erlyused.

I do not claim broadly a vessel with a supporting-shoulder formed ofwire and tin, as vessels with analogous rims have been heretofore made;nor do I claim broadly the use of inclined clamping-surfaces forsecuring cooking-vessels to steam-tables.

The combination of the cooking-vessel having the supporting-rim,constructed as described, and the lockingstops, in combination with thesteam-table having the notches and clamping-surfaces, substantially asspecified.

JAMES It. WALLS.

Witnesses: i,

T. EVERETT BROWN, H. M. MUNDAY.

